[merged] kasan-vmalloc-drop-outdated-vm_kasan-comment.patch removed from -mm tree

[merged] kasan-vmalloc-drop-outdated-vm_kasan-comment.patch removed from -mm tree

[Andrew Morton]

The patch titled
     Subject: kasan, vmalloc: drop outdated VM_KASAN comment
has been removed from the -mm tree.  Its filename was
     kasan-vmalloc-drop-outdated-vm_kasan-comment.patch

This patch was dropped because it was merged into mainline or a subsystem tree

------------------------------------------------------
From: Andrey Konovalov <andreyknvl@google.com>
Subject: kasan, vmalloc: drop outdated VM_KASAN comment

The comment about VM_KASAN in include/linux/vmalloc.c is outdated. 
VM_KASAN is currently only used to mark vm_areas allocated for kernel
modules when CONFIG_KASAN_VMALLOC is disabled.

Drop the comment.

Link: https://lkml.kernel.org/r/780395afea83a147b3b5acc36cf2e38f7f8479f9.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 include/linux/vmalloc.h |   11 -----------
 1 file changed, 11 deletions(-)

--- a/include/linux/vmalloc.h~kasan-vmalloc-drop-outdated-vm_kasan-comment
+++ a/include/linux/vmalloc.h
@@ -35,17 +35,6 @@ struct notifier_block;		/* in notifier.h
 #define VM_DEFER_KMEMLEAK	0
 #endif
 
-/*
- * VM_KASAN is used slightly differently depending on CONFIG_KASAN_VMALLOC.
- *
- * If IS_ENABLED(CONFIG_KASAN_VMALLOC), VM_KASAN is set on a vm_struct after
- * shadow memory has been mapped. It's used to handle allocation errors so that
- * we don't try to poison shadow on free if it was never allocated.
- *
- * Otherwise, VM_KASAN is set for kasan_module_alloc() allocations and used to
- * determine which allocations need the module shadow freed.
- */
-
 /* bits [20..32] reserved for arch specific ioremap internals */
 
 /*
_

Patches currently in -mm which might be from andreyknvl@google.com are

stacktrace-add-interface-based-on-shadow-call-stack.patch
arm64-scs-save-scs_sp-values-per-cpu-when-switching-stacks.patch
arm64-implement-stack_trace_save_shadow.patch
kasan-use-stack_trace_save_shadow.patch